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  1. /*
  2.  * HTTP authentication
  3.  * Copyright (c) 2010 Martin Storsjo
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. #ifndef AVFORMAT_HTTPAUTH_H
  23. #define AVFORMAT_HTTPAUTH_H
  24.  
  25. /**
  26.  * Authentication types, ordered from weakest to strongest.
  27.  */
  28. typedef enum HTTPAuthType {
  29.     HTTP_AUTH_NONE = 0,    /**< No authentication specified */
  30.     HTTP_AUTH_BASIC,       /**< HTTP 1.0 Basic auth from RFC 1945
  31.                              *  (also in RFC 2617) */
  32.     HTTP_AUTH_DIGEST,      /**< HTTP 1.1 Digest auth from RFC 2617 */
  33. } HTTPAuthType;
  34.  
  35. typedef struct DigestParams {
  36.     char nonce[300];       /**< Server specified nonce */
  37.     char algorithm[10];    /**< Server specified digest algorithm */
  38.     char qop[30];          /**< Quality of protection, containing the one
  39.                              *  that we've chosen to use, from the
  40.                              *  alternatives that the server offered. */
  41.     char opaque[300];      /**< A server-specified string that should be
  42.                              *  included in authentication responses, not
  43.                              *  included in the actual digest calculation. */
  44.     char stale[10];        /**< The server indicated that the auth was ok,
  45.                              * but needs to be redone with a new, non-stale
  46.                              * nonce. */
  47.     int nc;                /**< Nonce count, the number of earlier replies
  48.                              *  where this particular nonce has been used. */
  49. } DigestParams;
  50.  
  51. /**
  52.  * HTTP Authentication state structure. Must be zero-initialized
  53.  * before used with the functions below.
  54.  */
  55. typedef struct HTTPAuthState {
  56.     /**
  57.      * The currently chosen auth type.
  58.      */
  59.     HTTPAuthType auth_type;
  60.     /**
  61.      * Authentication realm
  62.      */
  63.     char realm[200];
  64.     /**
  65.      * The parameters specifiec to digest authentication.
  66.      */
  67.     DigestParams digest_params;
  68.     /**
  69.      * Auth ok, but needs to be resent with a new nonce.
  70.      */
  71.     int stale;
  72. } HTTPAuthState;
  73.  
  74. void ff_http_auth_handle_header(HTTPAuthState *state, const char *key,
  75.                                 const char *value);
  76. char *ff_http_auth_create_response(HTTPAuthState *state, const char *auth,
  77.                                    const char *path, const char *method);
  78.  
  79. #endif /* AVFORMAT_HTTPAUTH_H */
  80.